Although planets are huge compared to our Earth, most illustrations show them deceptively large in proportion to astronomical distances.
One of my favourite pieces of information is that all the planets would fit between the...

https://www.youtube.com/watch?v=GnYSsSEBZnE
There's a creature on earth that can survive the most extreme conditions on (and thanks to humans off) the planet! It's called a tardigrade, but people also call it a “waterbear” or “moss piglet."
Tardigrades are...